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ICSE Class 8 Answered

Solve the following simultaneous linear equation: 9x=62+8y;3y=52-2x
Asked by Cl_narayan | 15 Jan, 2020, 10:06: AM
answered-by-expert Expert Answer
9x=62+8y  → 9x - 8y = 62   ... (i)
3y=52-2x   → 2x + 3y = 52  ... (ii)
Multiplying equation (i) by 8 and (ii) by 3, we get
 
16x + 24y = 416 ... (iii)
27x - 24y = 186 ... (iv)
Adding (iii) and (iv), we get
43x = 602 → x = 14 
Substitute x = 14 in equation (i), we get
 
28 + 3y = 52  → y = 8 
Answered by Yasmeen Khan | 15 Jan, 2020, 10:49: AM
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